Bill Center of the San Diego Union-Tribunereports that Carlos Quentin underwent arthroscopic surgery on his right knee yesterday.

This is the same knee that Quentin had surgery on back in March and caused him to miss the first 49 games of the season. He ended up hitting .261/.374/.504 with 16 home runs, 46 RBI and an .877 OPS in 340 plate appearances, but didn’t start 22 out of the final 26 games of the season due to continued pain in the knee.

The good news is that Quentin will be able to participate in offseason workouts and should be ready for the start of spring training, but his injury history is reason for concern. He signed a three-year, $27 million extension with the Padres in July which will pay him $9.5 million in each of the next two seasons and $8 million in 2015. He’ll get at least a $3 million buyout on a $10 million mutual option for 2016 if he plays 320 games over the next three years. Quentin turned 30 years old in August and has never played more than 131 games in a season, so the Padres may not have to worry about that.

The White Sox won’t make a bid for free agent outfielder Bryce Harper, Bruce Levine of 670 The Score reports. Believed to be the favorites to land shortstop Manny Machado in free agency, the White Sox watched him ink a 10-year, $300 million contract with the Padres. The club is apparently content with its roster otherwise.

Last season, Harper hit .249/.393/.496 with 34 hom eruns, 100 RBI, 103 runs scored, and 13 stolen bases in 695 plate appearances. He led all of baseball, drawing 130 walks. Harper is also a six-time All-Star who won the 2012 NL Rookie of the Year Award and the 2015 NL Most Valuable Player Award.